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SENIOR NOTES PAYABLE - Additional information (Details) - USD ($)
 1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Jun. 30, 2023
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Dec. 31, 2022
Jan. 05, 2022
Debt Instrument [Line Items]              
Senior notes outstanding, total       $ 1,667,088,000   $ 1,721,751,000  
Unamortized debt issuance expenses       14,063,000   $ 18,140,000  
Senior Notes              
Debt Instrument [Line Items]              
Proceeds from issuance of debt   $ 0 $ 15,448,000 $ 185,000 $ 51,321,000    
Debt, weighted average interest rate   5.71%   5.71%   5.75%  
Interest expense on senior notes total   $ 25,088,000 $ 25,149,000 $ 78,091,000 $ 74,221,000    
Senior notes payable   $ 1,681,151,000   $ 1,681,151,000   $ 1,739,891,000  
Senior Notes | 6.75% Senior Notes due 2024              
Debt Instrument [Line Items]              
Interest rate 6.75% 6.75%   6.75%      
Repurchase shares of common stock (in shares) 2,356,978            
Repurchase amount $ 58,924,000            
Repurchase amount, accrued interest $ 663,000            
Senior notes payable   $ 140,492,000   $ 140,492,000   199,232,000  
Senior Notes | Sales Agreement Prospectus              
Debt Instrument [Line Items]              
Outstanding notes payable       $ 137,974,000   $ 138,159,000  
Senior Notes | Sales Agreement Prospectus | Maximum              
Debt Instrument [Line Items]              
Senior notes payable             $ 250,000,000